CAJ | 학술논문

调整光谱仪的光谱分辨率，可使光谱仪在满足不同目标测量需求的同时，减少数据采集、处理和存储的时间，提高仪器的整体性能。为克服传统傅里叶变换光谱仪的光谱分辨率固定的缺点，提出了一种分辨率可调的空间调制傅里叶变换光谱仪。介绍了该新型光谱仪及其干涉仪的工作原理，利用光线追迹的方法推导了光程差和横向剪切量的计算公式，并分析了新型干涉仪的光程等效模型。在此基础上，分析了光谱分辨率的调节原理。结果表明，该光谱分辨率可调的新型空间调制傅里叶变换光谱仪克服了传统光谱仪分辨率固定、稳定性差等缺点，具有分辨率可调、高稳定性、结构灵活和易于装调等特点。该研究内容为分辨率可调的干涉光谱仪的设计提供了理论基础，扩展了傅里叶变换光谱仪的实用范围。
조정광보의적광보분변솔，가사광보의재만족불동목표측량수구적동시，감소수거채집、처리화존저적시간，제고의기적정체성능。위극복전통부리협변환광보의적광보분변솔고정적결점，제출료일충분변솔가조적공간조제부리협변환광보의。개소료해신형광보의급기간섭의적공작원리，이용광선추적적방법추도료광정차화횡향전절량적계산공식，병분석료신형간섭의적광정등효모형。재차기출상，분석료광보분변솔적조절원리。결과표명，해광보분변솔가조적신형공간조제부리협변환광보의극복료전통광보의분변솔고정、은정성차등결점，구유분변솔가조、고은정성、결구령활화역우장조등특점。해연구내용위분변솔가조적간섭광보의적설계제공료이론기출，확전료부리협변환광보의적실용범위。
In the premise of fulfilling the application requirement ,the adjustment of spectral resolution can improve efficiency of data acquisition ,data processing and data saving .So ,by adjusting the spectral resolution ,the performance of spectrometer can be improved ,and its application range can be extended .To avoid the problems of the fixed spectral resolution of classical Fourier transform spectrometer ,a novel type of spatial modulation Fourier transform spectrometer with adjustable spectral resolution is proposed in this paper .The principle of the novel spectrometer and its interferometer is described .The general expressions of the optical path difference and the lateral shear are induced by a ray tracing procedure .The equivalent model of the novel inter-ferometer is analyzed .Meanwhile ,the principle of the adjustment of spectral resolution is analyzed .The result shows that the novel spectrometer has the merits of adjustable spectral resolution ,high stability ,easy assemblage and adjustment etc .This the-oretical study will provide the theoretical basis for the design of the spectrometer with adjustable spectral resolution and expand the application range of Fourier transform spectrometer .